Interal table structure in runtime

[Former Member]

Hello experts,

How can i copy the structure of an internal table to another internal table?. Im trying to do this:

data: p_table_out type table.

types: begin of ty_generic,

matnr type matnr,

fkimg type fkimg,

meins type meins,

end of ty_generic.

data: it_generic type table of ty_generic.

p_table_out = it_generic. "At this point p_table_out should be exactly like it_generic, but it's not working

" this way =(

Hope you help me with this.

Thanks.

Edited by: marco hernandez on Sep 17, 2008 5:00 PM

[Former Member]

something like this.

data: l_ref type ref to data.
field-symbols <fs> type table.

create data l_ref like it_generic.
assign l_ref->* to <fs>.

[Former Member]

>

> something like this.
> 
> 

> data: l_ref type ref to data.
> field-symbols <fs> type table.
> 
> create data l_ref like it_generic.
> assign l_ref->* to <fs>.
> 

>

> something like this.
> 
> 

> data: l_ref type ref to data.
> field-symbols <fs> type table.
> 
> create data l_ref like it_generic.
> assign l_ref->* to <fs>.
> 

Ok now i have another problem.

p_table_out is a CHANGING parameter in a Method. task is a public attribute in the class. This is the code:

Private Section.

methods assign_structure
    changing
      p_table_out type table .


Method assign_structure.
 Case me->task.

   when '01'.
     types: begin of ty_generic,
                  matnr type matnr,
                  fkimg type fkimg,
                  meins type meins,
                end of ty_generic.

    data: it_generic type table of ty_generic.

    p_table_out = it_generic
 endcase.

Endmethod.

As you can see, if a have another value in the case statement, the parameter should have a different structure. I don't know if i can declare field-symbols as parameters in a method =S

[Former Member]

Ignore...my reply

[JozsefSzikszai]

hi,

you have to define the second internal table, like the first one:

types: begin of ty_generic,
matnr type matnr,
fkimg type fkimg,
meins type meins,
end of ty_generic.

data: it_generic type table of ty_generic.

data: p_table_out table of ty_generic.
OR
data: p_table_out LIKE it_generic.

hope this helps

ec

[former_member1033672]

Do it this way

* CREATE STRUCTURE
FIELD-SYMBOLS: <fs_details> TYPE abap_compdescr.

  DATA : gt_details TYPE abap_compdescr_tab.

  DATA : ref_table_des TYPE REF TO cl_abap_structdescr.


* get structure
  ref_table_des ?= cl_abap_typedescr=>describe_by_name( 'Z_STRUCTURE' ).

  gt_details[] = ref_table_des->components[].

  LOOP AT gt_details ASSIGNING <fs_details>.
    CLEAR wa_fieldcat.
    wa_fieldcat-fieldname = <fs_details>-name .
    wa_fieldcat-datatype = <fs_details>-type_kind.
    wa_fieldcat-inttype = <fs_details>-type_kind.
    wa_fieldcat-intlen = <fs_details>-length.
    wa_fieldcat-decimals = <fs_details>-decimals.
    APPEND wa_fieldcat TO gt_fieldcat.
  ENDLOOP.
  UNASSIGN <fs_details>.


* create dynamic internal table and assign to fs
  CALL METHOD cl_alv_table_create=>create_dynamic_table
               EXPORTING
                  it_fieldcatalog = gt_fieldcat[]
               IMPORTING
                  ep_table        = dy_table.
  ASSIGN dy_table->* TO <dyn_table>.
* create dynamic work area and assign to fs
  CREATE DATA dy_line LIKE LINE OF <dyn_table>.
  ASSIGN dy_line->* TO <dyn_wa>.

Edited by: Filip Kouba on Sep 17, 2008 5:10 PM